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L. SGOEIELD.

Y CORN PLANTER. No. 318,512. Patented May 26, 1885.

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Partnr LEVI SCOFIELD, OF GRAND HAVEN, MICHIGAN, ASSIGNOR TO CHALLENGECORN PLANTER COMPANY, OF SAME PLACE.

CORN-PLANTER.

SPECIFICATION forming part of Letters Patent No. 318,512, dated May 26,1885.

Application filed March l0, 1855.

T all whom, t may concern:

Beit known that I, LEVI ScoFiELD, of Grand Haven, in the county ofOttawa and State of Michigan, have invented certain new and usefulImprovements in Corn-Planters; and I do hereby declare the following tobe a full, clear, and exact description of the same, reference being hadto the accompanying drawings, torming a part of this specification, andto the Iig- Io ures and letters of reference marked thereon.

My invention relates to improvements in the seed-plate-actuatingmechanism of corn-planters, and particularly to improvements upon themechanism shown, described, and claimed I5 in Letters 'Patent of theUnited States granted to me on the 17th day of March, 1885.

It has for its object to provide more simple and eiicicient means foreffecting the arrest of the horizontally-vibrating frame to which theactuating-pawls are connected, and more simple and efficient means forpreventing the raeing of the seed-plate under the impulses given it bythe actuating-pawls.

In t-he accompanying drawings, Figure l represents a top plan View ofone of the seed-boxes of a corn-planter constructed in accordance withmy invention, with the hopper and bottom plate removed to show clearlythe construction and arrangement of the improved seed-plate-actuatingmechanism. Fig. 2 is a sectional view taken on the line x x, Fig. l.Fig. 3 is a perspective viewbf the horizontally-vibrating frame and theswinging supports upon which it is mounted.

Similar letters of reference in the several :figures indicate likeparts.

A represents thc plate or casting which forms the base of the seed-box,and serves to connect the latter rigidly to the beam of the 4o planter.This casting has ilanges a2 a, which serve to guide the actuating-pawlsB in their movements, and is provided with a horizontal bearing for theseed-plate C to rest upon, and with a central stud, a', which forms apivot for the seed-plate.

The seed-plate is provided with the usual seed-apertures and with theperipheral ratchet-teeth c c, with which the actuating-pawls b bco-operate. rIhese pawls are preferably 5o arranged at opposite cornersof a reciprocating frame, D, and are pivoted to the bolts E,

(Model.)

which serve to connect said swinging frame to the upper ends ofbifurcated arms or links F F, that bestride the beam, and are pivoted inturn thereto by bolts f, as shown.

The parts thus far described very much resemble corresponding parts ofthe mechanism illustrated in my former patent, above referred to, thoughthere are some ditferenees in construction, which render the presentdevice 6o more simple and easier to iit up, which I will now point out.In the former device the throw of the horizontally-swinging frame inboth directions was limited by the striking of the parts of said frame(lettered h5 h5 in said pat- 65 ent) against the cross-plate of the maincasting A, and the racing of the seed-plate was prevented by theco-operation of stops formed upon the pawls with the ratchet-teeth ofsaid seed-plate, whereas in the present device I 7o connect the armsconstituting the swinging supports of 'the horizontally-moving frame bya broad bar or cross-piece, G, as shown clearly in Fig. 3, and causesaid bars or cross-pieces to serve as stops for arresting and limitingthe movements of the swinging frame by alternately engaging withopposite portions of the casting A, as will be understood by referenceto Figs. l and 2; and instead of forming stops upon the pawls, I arrangeupon said bars 8o or cross-pieces Gstuds or projections H, which operatealternately to arrest the `further rotation of the seed-plate byengaging with the projecting teeth thereof simultaneously with theengagement of the bars with the casting in limiting the throw of theswinging frame. These changes in construction render the new deviceequally as eiiieient as the former device, if not more so, and requireless fitting up of the castings. 9o

I of course am aware that it is not broadly new to combine in aseed-plate-actuating mechanism of a planter stops for limiting themotion of a frame carrying the seed-plate-actuating pawls with otherstops for preventing the racing of the seed-plate, and I therefore donot desire to be understood as endeavor-ing to claim herein such broadidea.

My improvements are in the nature of additions to or modifications ofthe de vicecovered Ico by my former patent; and

What` I claim to be new isl. The combination, with the Seed-plate anding supports for the said frame, having the the casting upon which theseed-plate is mountwide bars or cross-pieces adapted to (zo-operate edand rotates, of the horizontallyswinging with the casting to limitthethrow of the frame I5 frame and its pam/1s, and the vertically-swingland its pawls, and having also the studs or pro- 5 ing 'supports for thesaid frame, having the l jecbions for engaging with tbeteebh of theseed- Wide bars or cross-pieces adapted to eo-operate plate andpreventing the racing of the latter, with the casting to limit the throwof the frame substantinlly'as described. and its zLWls substantially asdescribed. T J

2. ThE; combinatiion, with the seedqilate and LE H SCOFIELD 1o theCasting upon which the seedplate is mouno- Vil'n esses:

ed and rotates, of the horizontailyswinging GEO. STICKNEY, frame and itspawls, and the vertically-swimg`- XV. M. SAUNDERS.

